HQL grammar does not actually support the CASE statement -------------------------------------------------------- Key: HHH-3631 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3631 Project: Hibernate Core Issue Type: Bug Components: query-hql Affects Versions: 3.3.1 Environment: Hibernate 3.3.1 ga, Postgresql Reporter: Andra Nedelcovici Using a simple form of the CASE statement in HQL like the following from EnumerationValue where enumeration = 'XXX' and (case :param when 1 then value > 5 when 2 then value < 100 else true end) order by id yields org.hibernate.hql.ast.QuerySyntaxException: unexpected AST node: case near line 1, column 54 [...] at org.hibernate.hql.ast.QuerySyntaxException.convert(QuerySyntaxException.java:54) at org.hibernate.hql.ast.QuerySyntaxException.convert(QuerySyntaxException.java:47) at org.hibernate.hql.ast.ErrorCounter.throwQueryException(ErrorCounter.java:82) at org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:258) at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:183) at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:134) at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:101) at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:80) at org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:94) at org.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:156) at org.hibernate.impl.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:135) at org.hibernate.impl.SessionImpl.createQuery(SessionImpl.java:1650) ... I also tried this (silly, isn't it?): from EnumerationValue where enumeration = 'XXX' and (1=1 and case 3 when 1 then false when 2 then true else true end) order by id in order to check for HQL grammar limitations, but the result is just the same. I should also mention that I ran successfully the above queries in a PostgreSQL console (with the normal adjustments). -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira